Chapter 10 - Operating Systems
... the nature of the application Response time The time delay between receiving a stimulus and ...
... the nature of the application Response time The time delay between receiving a stimulus and ...
Lecture for Chapter 2.3 (Fall 09)
... The paper deals with issues of scale by leveraging the large number of nodes to spread operating systems services and components across the machine, tightly coupling the operating system. The authors plan on provisioning nodes to provide workload execution, aggregation, and system services, and dyna ...
... The paper deals with issues of scale by leveraging the large number of nodes to spread operating systems services and components across the machine, tightly coupling the operating system. The authors plan on provisioning nodes to provide workload execution, aggregation, and system services, and dyna ...
Architectural Support for Operating Systems
... • Programming interface to services provided by the OS • Typically written in a high-level language (C or C++) • Mostly accessed by programs using APIs • Three most common APIs: – Win32 API for Windows – POSIX API for POSIX-based systems (UNIX, Linux, Mac OS X) – Java API for the Java virtual machin ...
... • Programming interface to services provided by the OS • Typically written in a high-level language (C or C++) • Mostly accessed by programs using APIs • Three most common APIs: – Win32 API for Windows – POSIX API for POSIX-based systems (UNIX, Linux, Mac OS X) – Java API for the Java virtual machin ...
Ch1 Introduction to the Linux Kernel
... The kernel typically resides in an elevated system state compared to normal user applications This includes a protected memory space and full access to the hardware This system state and memory space is collectively referred to as kernel-space ...
... The kernel typically resides in an elevated system state compared to normal user applications This includes a protected memory space and full access to the hardware This system state and memory space is collectively referred to as kernel-space ...
Slides 2 - USC Upstate: Faculty
... directories, create and delete them, search them, list file Information, permission management. ...
... directories, create and delete them, search them, list file Information, permission management. ...
Module 4: Processes
... Frequency of Execution Short-term scheduler is invoked very frequently (milliseconds) (must be fast) If it executes 1 time per 100 msec and takes 10 msec to execute, what percentage of CPU time is used by the scheduler? ...
... Frequency of Execution Short-term scheduler is invoked very frequently (milliseconds) (must be fast) If it executes 1 time per 100 msec and takes 10 msec to execute, what percentage of CPU time is used by the scheduler? ...
Processes - BYU Computer Science Students Homepage Index
... // use parent's current directory &siStartInfo, // STARTUPINFO pointer &piProcInfo); // receives PROCESS_INFORMATION BYU CS 345 ...
... // use parent's current directory &siStartInfo, // STARTUPINFO pointer &piProcInfo); // receives PROCESS_INFORMATION BYU CS 345 ...
1: Welcome and Overview COM S 414
... When the request is complete, the device will send an interrupt signal to the CPU via a shared bus Interrupt causes control to transfer to the OS (even if an application is in the middle of ...
... When the request is complete, the device will send an interrupt signal to the CPU via a shared bus Interrupt causes control to transfer to the OS (even if an application is in the middle of ...
Figure 5.01
... counter, and one sequence of instructions that can be carried out at any given time. ...
... counter, and one sequence of instructions that can be carried out at any given time. ...
Exam Review Andy Wang Operating Systems COP 4610 / CGS 5765
... assignments 1-4, and project 1 8 points based on your ability to apply various principles learned in the class ...
... assignments 1-4, and project 1 8 points based on your ability to apply various principles learned in the class ...
Course Syllabus
... concepts as they are applied to memory, process, filesystem and I/O device management ...
... concepts as they are applied to memory, process, filesystem and I/O device management ...
Chapter 09: Uniprocessor Scheduling
... • w = time spent in system so far, waiting • e = time spent in execution so far • s = total service time required by the process, including e; ...
... • w = time spent in system so far, waiting • e = time spent in execution so far • s = total service time required by the process, including e; ...
CS423/523
... – Allows multiple processes to share resources of processor fairly – Does this by scheduling processes to get execution time • User Processes • Microsoft Word, Foxfire or Skype • System Processes: • Print spooler, network connections, security accounts manager ... plus many others ...
... – Allows multiple processes to share resources of processor fairly – Does this by scheduling processes to get execution time • User Processes • Microsoft Word, Foxfire or Skype • System Processes: • Print spooler, network connections, security accounts manager ... plus many others ...
process
... • There must be some way that a process can indicate completion. • This indication may be: – A HALT instruction generating an interrupt alert to the OS. – A user action (e.g. log off, quitting an application) – A fault or error – Parent process terminating ...
... • There must be some way that a process can indicate completion. • This indication may be: – A HALT instruction generating an interrupt alert to the OS. – A user action (e.g. log off, quitting an application) – A fault or error – Parent process terminating ...
System Calls
... OS • Use trap mechanism to switch to the kernel • Pass a number that represents the OS service (e.g., read) – System call number; usually set in a register • A system call does the following: – Set the system call number ...
... OS • Use trap mechanism to switch to the kernel • Pass a number that represents the OS service (e.g., read) – System call number; usually set in a register • A system call does the following: – Set the system call number ...
ppt
... – Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them • Many types of resources - Some (such as CPU cycles, main memory, and file storage) may have special allocation code, others (such as I/O devices) may have general request ...
... – Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them • Many types of resources - Some (such as CPU cycles, main memory, and file storage) may have special allocation code, others (such as I/O devices) may have general request ...
MS Word file - Maricopa Community Colleges
... 1. ___________________ is a CD providing support information for MS products like NT Server. Microsoft’s electronic bulletin board is called ________________________. MS emphasizes that all hardware needs to be checked against the _____________. 4. The NT kernel contains ____________________________ ...
... 1. ___________________ is a CD providing support information for MS products like NT Server. Microsoft’s electronic bulletin board is called ________________________. MS emphasizes that all hardware needs to be checked against the _____________. 4. The NT kernel contains ____________________________ ...
CSS430: Introduction - UW Faculty Web Server
... Multiprogramming: IBM360 Time-sharing systems: Multics, Unix ...
... Multiprogramming: IBM360 Time-sharing systems: Multics, Unix ...
Module 4: Processes
... Useful and Important Concept: Process = program in execution A process is not the same as a program. Program is a passive entity, whereas process is active. Process consists of an executable program, associated data, and execution context. Modern (multiprogramming) operating systems are structured a ...
... Useful and Important Concept: Process = program in execution A process is not the same as a program. Program is a passive entity, whereas process is active. Process consists of an executable program, associated data, and execution context. Modern (multiprogramming) operating systems are structured a ...
Operating Systems I: Chapter 2
... OS to maintain control of the system Problem: How do users programs access necessary privileged instructions (such as I/O)? – The user must ask the OS to perform the operation on the user’s behalf System call – the method used by a process to request action by the operating system – Usually takes th ...
... OS to maintain control of the system Problem: How do users programs access necessary privileged instructions (such as I/O)? – The user must ask the OS to perform the operation on the user’s behalf System call – the method used by a process to request action by the operating system – Usually takes th ...
ITFN 2601 Introduction to Operating Systems
... Found in all modern general purpose operating systems Without preemption, the system implements ``run to completion (or yield)'' ...
... Found in all modern general purpose operating systems Without preemption, the system implements ``run to completion (or yield)'' ...
Intel SIO Presentation
... Most operating systems are designed for general-purpose computation. A proposal has been put forth for an OS that is optimized for running math-intensive programs. In MathOS, the kernel includes system calls for many useful mathematical operations, such as matrix arithmetic, Bessel functions, Euclid ...
... Most operating systems are designed for general-purpose computation. A proposal has been put forth for an OS that is optimized for running math-intensive programs. In MathOS, the kernel includes system calls for many useful mathematical operations, such as matrix arithmetic, Bessel functions, Euclid ...
